Question

the area of trapezium is 540 cm if the ratio of parallel side is 7 :5 and the distance between them is 18 cm find the length of the parallel side​

Answer 1

Step-by-step explanation:

Let the parallel sides be 7x and 5x respectively.

Area of trapezium = 1/2 × (b1+b2) × 18

=> 540 cm2 = 1/2 × (7x + 5x) × 18

=> 540 × 2 = 12x × 18

=> 1080 cm2 = 216x

Therefore, x = 1080/216

= 5 cm

1st side = 7x

= 7 × 5 cm

= 35 cm

2nd side = 5x

= 5 × 5 cm

= 25 cm

Hope it helps :)